** Description changed:

+ SRU Justification:
+ 
+ Impact: Since "xen: Use IRQF_FORCE_RESUME" was accepted into upstream
+ stable for 2.6.32, a save/restore cycle will leave the guest in a halt
+ state after restore.
+ 
+ Fix: Two upstream patches (one of those would be in the latest stable, the 
other had to be reverted as it broke compile on some architectures. The 
suggested patch is the revised version.
+ * xen/timer: Missing IRQF_NO_SUSPEND in timer code broke suspend.
+ * genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier
+ 
+ Testcase:
+ * Boot pv-guest
+ * Run xm save <id> <file> on the dom0
+ * Run xm restore <file> on the dom0
+ * Try to re-connect to the console with xm console <id>
+ 
+ ---
+ 
  Description:  Ubuntu 10.04.3 LTS
  Release:      10.04
  
  When I'm restoring virtual machine after been saved (for example during
  shutdown) it completely freezes or sometimes is working, but I cannot
  execute interactive commands.
  
  This problem is related to linux-image-2.6.32-34-server package, because
  when I'm using 2.6.32-34 kernel, all is OK.
  
  Dom0 system is Debian 6.0.2, xen hypervisor version is  4.0.1-2.
- --- 
+ ---
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 
2: ls: cannot access /dev/snd/: No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  CurrentDmesg: [   11.980044] eth0: no IPv6 routers present
  DistroRelease: Ubuntu 10.04
  Lspci: Error: [Errno 2] No such file or directory
  Lsusb: Error: [Errno 2] No such file or directory
  Package: linux (not installed)
  PciMultimedia:
-  
+ 
  ProcCmdLine: root=/dev/xvda2 ro root=/dev/xvda2 ro
  ProcEnviron:
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-34.77-server 2.6.32.44+drm33.19
  Regression: Yes
  Reproducible: Yes
  Tags: lucid suspend resume regression-update needs-upstream-testing
  Uname: Linux 2.6.32-34-server x86_64
  UserGroups:

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https://bugs.launchpad.net/bugs/881542

Title:
  Ubuntu 10.04 LTS as guest freezes after xm restore

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